A/C blower
Thread Starter
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
A/C blower
I am sure anybody that has an early C 4 has noticed that the A/C fan is kind of anemic.
has anybody come up with a blower that puts out more air?
i replaced mine with a new Dorman blower because the bearings or brushes were squealing.
i expected go get a bigger blast of air with a new motor, But all i cured was the squealing noise.
it’s 112 today and i just need more air.
has anybody come up with a blower that puts out more air?
i replaced mine with a new Dorman blower because the bearings or brushes were squealing.
i expected go get a bigger blast of air with a new motor, But all i cured was the squealing noise.
it’s 112 today and i just need more air.
Last edited by coupeguy2001; Jul 4, 2020 at 06:44 PM.
Racer
Joined: Mar 2020
Posts: 384
Likes: 144
From: Langton, Ontario, Canada
2025 C4 of the Year Finalist - Unmodified
I have an 85, and I noticed the same thing. I removed the blower and using a nylon brush, I made sure that the AC unit was free of leaves and crap. (There was lots!) I also looked at the high speed blower relay, located below the motor and found that it was not working at all. It only needed a cleaning of the contacts in the connector plug and it worked once more. So, now I have more air, but you're right... Pretty anemic on the whole.
Thread Starter
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
Blower
I have the automatic temp control.
it seems like it us not closing the valve that goes to your feet.
i may just have to give it vacuum all the time so it’s closed or just wire it shut
it seems like it us not closing the valve that goes to your feet.
i may just have to give it vacuum all the time so it’s closed or just wire it shut
Drifting
Joined: Jan 2005
Posts: 1,343
Likes: 320
From: San Antonio Tx
My 86 uses the same blower as my 02 s-10 had. But in the s-10 I always ran it on low because it would blow your hat off on high speed. I replaced the a/c evaporator, which was partially plugged with debris and removed the restrictions in the center vents with a Dremel. It made a huge difference. Also, check the blower control module if you have climate control. Sometimes they don't put out full voltage and need to be replaced.
Drifting
Joined: Jun 2018
Posts: 1,402
Likes: 287
From: Brisbane Australia
C4 of Year Finalist (performance mods) 2019
This was kind of touched on above but are all your vacuum controlled air “flaps/doors” working correctly? The if the door to the windscreen demister is open then just about nothing comes out the centre vents.
Thread Starter
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
Blower
I used a piece of metal to hold the defroster completely shut
the dremel idea sounds like a good one.
in what universe Did those engineers decide too much cold air was a bad idea?
the dremel idea sounds like a good one.
in what universe Did those engineers decide too much cold air was a bad idea?
